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<li class="level1"><a href="#public-functions">公用函数</a></li>
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<h1 class="title">QSGDynamicTexture 类</h1>
<!-- $$$QSGDynamicTexture-brief -->
<p><a href="qsgdynamictexture.html">QSGDynamicTexture</a>类用作动态更改纹理的基类，例如渲染到 FBO 的内容。. <a href="#details">更多...</a></p>
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<tr><td class="memItemLeft rightAlign topAlign">头文件：</td><td class="memItemRight bottomAlign">   <span class="preprocessor">#include &lt;QSGDynamicTexture&gt;</span>
</td></tr><tr><td class="memItemLeft rightAlign topAlign"> qmake:</td><td class="memItemRight bottomAlign"> QT += quick</td></tr><tr><td class="memItemLeft rightAlign topAlign">继承自：</td><td class="memItemRight bottomAlign"> <a href="qsgtexture.html">QSGTexture</a></td></tr></table></div><ul>
<li><a href="qsgdynamictexture-members.html">所有成员的列表，包括继承成员</a></li>
<li><a href="qsgdynamictexture-obsolete.html">废弃的成员</a></li>
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<h2 id="public-functions">公用函数</h2>
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<tr><td class="memItemLeft rightAlign topAlign"> virtual bool </td><td class="memItemRight bottomAlign"><b><a href="qsgdynamictexture.html#updateTexture">updateTexture</a></b>() = 0</td></tr>
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<li class="fn">20 个公用函数继承自<a href="qsgtexture.html#public-functions">QSGTexture</a></li>
<li class="fn">31 个公用函数继承自<a href="../qtcore/qobject.html#public-functions">QObject</a></li>
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<h2 id="static-public-members">静态公用成员</h2>
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<tr><td class="memItemLeft rightAlign topAlign"> const QMetaObject </td><td class="memItemRight bottomAlign"><b><a href="qsgdynamictexture.html#staticMetaObject-var">staticMetaObject</a></b></td></tr>
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<li class="fn">9 个静态公用成员继承自<a href="../qtcore/qobject.html#static-public-members">QObject</a></li>
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<h3>额外的继承成员</h3>
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<li class="fn">1 个属性继承自<a href="../qtcore/qobject.html#properties">QObject</a></li>
<li class="fn">1 个公用槽函数继承自<a href="../qtcore/qobject.html#public-slots">QObject</a></li>
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<li class="fn">9 个保护函数继承自<a href="../qtcore/qobject.html#protected-functions">QObject</a></li>
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<!-- $$$QSGDynamicTexture-description -->
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<h2 id="details">详细信息</h2>
<p><a href="qsgdynamictexture.html">QSGDynamicTexture</a>类用作动态更改纹理的基类，例如渲染到 FBO 的内容<a href="file:///E:/WLL/work/Qt5.12-Document-Trans-in-Chinese/qtquick/qsgdynamictexture.html">。</a></p>
<p>要更新纹理的内容，请显式调用<a href="file:///E:/WLL/work/Qt5.12-Document-Trans-in-Chinese/qtquick/qsgdynamictexture.html#updateTexture">updateTexture</a>()。简单地调用<a href="file:///E:/WLL/work/Qt5.12-Document-Trans-in-Chinese/qtquick/qsgtexture.html#bind">bind</a>() 不会更新纹理。</p>
<p><b>注意：</b>所有带有 QSG 前缀的类都应该只在场景图的渲染线程上使用。有关详细信息，请参阅<a href="file:///E:/WLL/work/Qt5.12-Document-Trans-in-Chinese/qtquick/qtquick-visualcanvas-scenegraph.html#scene-graph-and-rendering">场景图和渲染</a>。</p></div>
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<h2>成员函数文档</h2>
<!-- $$$updateTexture[overload1]$$$updateTexture -->
<h3 class="fn" id="updateTexture"><a name="updateTexture"></a><code>[pure virtual] </code><span class="type">bool</span> QSGDynamicTexture::<span class="name">updateTexture</span>()</h3>
<p>调用此函数显式更新动态纹理。调用<a href="file:///E:/WLL/work/Qt5.12-Document-Trans-in-Chinese/qtquick/qsgtexture.html#bind">bind</a> ()会绑定之前更新的内容。</p>
<p>如果纹理作为更新的结果而更改，则该函数返回 true；否则返回假。</p>
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